Radiotransmitter mounting



H. P, MILLER. JR.. ET AL RADIOTRANSMITTER MOUNTING Fild Sept.

.IIl/IIIIIII IIIIIIIIIIII Il'II/IIIIIIII Aug. 23, 1932.

[III

INVENTORS HERMAN a MILLER JR.

EARL c. PORTS ATTORNEY FIG Patented Aug. 23, 1932 UNITED STATES" r SIDE, NEW YORK. Ass Gnons TO INTEBNA'IIGLTAL. ooMMUnrc TIons Larson-A- TORIES, Ina, OF NEW "YORK, 1v. Y.,'A CORPORATION on NEW YORK nAnIoTnAnsMITTnn MOUNTING Application ease ents e, 1930. serialNo. 480,800.,

Our invention relates to radio transmitters, and particularly to mounting and cushion ng I means for a'transmitter.

An object-of ourinvention isto provide a simple and inexpensive cushion support for a transmitter.

Afurther object is to provide a cushion sup down and guy members. p p 1 3 Still other objects are to providea simple and inexpensive mounting for :a -,,portable radio transmitter in mobileservice, such as on a ship; and to utilize simple and easily obtainable materials and devices, for securing a port for a radio transmitter includingtieportable transmitter in place, so as to avoid damage to the component parts, and tovprevent such jarring and vibration. as would interfere with thestability of the signaling frequency. I

Inthe operation of radio transmitters, particularly at extremely high frequencies, difficulty has been encountered'from vibration,

which tends to change the, relative position. of

7 parts ofthe circuit such a way as to, alter the frequency of the emitted electrical oscilla-f ticns. These eflects maybe due in partto swin ing of the: antenna, but. a substantial portion-may be due also to vibration of the generator and its associated elements. Like wise, vibration the transmitter tube ele-r ments at an audible frequency has an influence upon the signals radiated, especially when they are received by the. heterodynemethod. Vibration ,and shocks may also cause difficulties in additional ways, such as loosening connections and other parts in the transmitter, and shortening the filament life of the transmitter tube.

Our invention comprises a simple arrangement of cushion members, spring and turnbuckle tie-members and spring and turnbuckle guy-members adapted to support and position the radio transmitter and its containing cabinet with respect to the ships structure in such a way that the troublesome vibrations and the like, and their effects are eliminated.

Other objects and advantages of our invention will be apparent from the following HERMAN P. MILLER, anion EAST oniinen, NEwJnnsEY, ANDLEARL G. roars; on woon- I description when read in connection with the accompanying drawing; wherein 1g. 1 1s a view in perspect ve of a trans- Initter system and cabinet'embodying our I vention, F 1g. 2.1sa view 1n vertical section of one of the cushion members of our invent on, on

radio transmitter including the vacuum'tube and'resonantcircuits may be positioned within the sections 1, 2 and 3 of a suitable cabinet or casing. V Thecabinet is supported upon up rights 4, which may form, integral parts thereof. Foot' plates5 are attached tothe legs t'by anglemembers 6. as shown in Fig. 2. A floor or base frame 7 is provided having the peripheral portions formed of angle bar members 8, with plat e members9 at the core ners cooperating therewith. Atfthe respeo tive corners of the frame whichis rectangu}. lar, are provided rectangular compartments formed within the corners by bentstraps-ll, secured at their endsftoi the bars 7, 8. :The plates 5 and 9 corr Rubber pads are provided beneath the foot plates 5. A pad of sponge rubber 14 is disposed between each foot plate 5 and floor plate Qto support and cushion the weight of the transmitter andthe cabinet. Between the angle members 12. and the angle members 8, andalso between the angle mjembersylQ and the straps 11, are cushions 15, formed of, live rubber as; distinguished from the sponge rubber utilized for the cushion 14.

espond with these compare The cushions 15 serve; to center. the legs fl and to support the transmitterand cabinet against side-wise .movement. The ,pads may also'be' of live rubber, if desired.

ends secured to the angle bars 8.

Angle or reinforcing plates 16 are also provided and aflixed to the upright members 4 at their point of junction with the lower chamber 1. These serve as attachment points .for theupper ends of tie members, each made up of a spring member 17, a turn buckle.

l8 and hook'members 19. The tie members are held in diagonal position withtheir lower 7 Guy members are also providedon of the transmitter cabinet, secured-at the corners and adapted to be attached to a ce i1- bolting plates 21, fastened to the ceilingor' over-head deck. v

"In the operation of the device of our invention, the guy membersand tie members srver attach the. transmitter'cabinet to the ship'a'nd' provide an elast-iclsupport. The rubber. cushion members between the a foot plates 5. and jfio'or plates 9 serve'to prevent the transmission f of the rapicl' jjvibrations which tend to produce audio 'f requencyya- IfiQ i H S i th tr nsmi t i'wave [ill-h 3; 1 members f hold: f the transmitter structure tightly to I the" floor, and prevent? displacemerit of the "transmitterQduring rolling and pitchin -pf h hipilarly. th fis y' members on the top section 3 the tre sf-1 niitter structure assistiinf maintainingl e relative position between the t a mitt gand' the ship structure during such lstres' s es as cmi'd i re l i s O p j ria f. t e sh ii Thepresence of the springs llindicated pre;

ventsthe transmission or troublesome vvibrails. to the transmitter structure without iIn-i pairing, the security. of attachment i Y The floor 1 lates 9. 1a: est on the h agan; an inn r flan of the, angle a .8 2 6 supporting plates or blocks 9', ofpthe right, thickness in the planeof theseflanges. See Fig.2)? These plates 9' may begmade fast to't i ar By our. invention we have thusoproduced a newand, useful system of mountings portable radio transmitter and renderingit shock;

proof-r. r. c v we have shown buta-single embodi: inept of the device of Ourinven'tipmfit is. p ssibl s pro uce oth r mbo imefi ofthe same inventive concept and it is there fore des e t a 61 a fl h l mitat isishan 1a? ia pe ld up n-as appfidd 'f m t it r n; Qr, r quir br' 'p' i Ingaphtym rlsidgllrr s t upp, members, a foot plate 1min flanged d 15 name 1 a t plat and bottom "cushion" members foi said the top plates in said compartments, and auxiliary side cushion members inserted between said flanged edges of said foot plates and the sides of said compartments. V V

V 2. A transmitter comprising a casing having a plurality of rigid upright supporting members, a foot plate having flanged edges at the bottom of each upright, a base frame hav- I ing compartments to r'eci've'said foot plates,

bottom cushion members for said foot plates in said compartments, andauxiliary cushion members disposed between the sides of said compartments and the flanged edges of said foot plates. J

3. A transmitter comprising a casing having. a plurality of rigid upright supporting members, a foot plate having flanged edges at the bottom of each upright, a base frame hav 7 ing compartments to receive said foot plates, bottom cushion members for said foot plates in said compartments, auxiliary cushion members 'di'sposed between the'sides of said compartments and the flanged edges of said foot plates, and elastic tie membersbetween said casing and said base to hold saidfoot 'jla tes against said cushion members;

f i -transmitter comprising a casing hav a "plurality of rigid upright supporting members, ;a* oot plate having flanged edges atthebottom ioffeacl upright', a base frame having compartments fto' receive said foot plates in said compartments, {auxiliary c ushs disposed Y between th-e -side s' of 

